we are nostalgic for the attention span we had then

A few days ago I saw a tweet which said the following: “There was a time when happiness took the humble form of an ordinary afternoon. Coming home, turning on the PS2 and disappearing for hours.” It is one of those tweets that manage to strike a nostalgic chord and name something that many people feel but have not yet been able to articulate. The easy reading is the nostalgia of youth: we were young, we had no responsibilities, we had entire afternoons to lose in the GTA on duty. That’s true, but it’s only half the story. The other half is that we lived those afternoons with an attention that today is almost impossible to reproduce.. There was nothing competing for her. The screen was one, the world was that, and the mind stayed inside for hours without anyone calling it back. That no longer exists. Not because we have less free time, but also because adult life overwhelms us as is normal; but because the free time we have has stopped being habitable in the same way. The cell phone does not interrupt only when it rings: it interrupts all the time without doing anythingwith its mere presence in the pocket, with the always open possibility that there is something in there that we have not yet seen. The 2007/2008 academic year was absolutely spectacular for my group of friends. Of the six of us, four of us had a girlfriend. We all finished the course single. One of the reasons was that we loved spending hours together playing PES 2008. A few years later we wanted to recover those times but it was never the same, and what had changed was that we all now had smartphones and social networks, and We all ended up looking at it, the individual screen, instead of the TV, the collective screen.so we lost track of what others were doing and the experience was completely different. Even with solo play, loading screens, which were previously a moment of mental pause or going for another Coca-Cola, have become the automatic trigger for taking out the phone. The brains that grew up with those PS2 afternoons have been reconfigured to not tolerate even fifteen seconds of emptiness, just like when we wait for the elevator or have someone in front of us in line at the supermarket. The result is a strange form of loss that is difficult to name because nothing concrete is taken from you. Even though we have more responsibilities and less free time, we still have some moments. We still have access to games. What we don’t have is the ability to step inside them in the same way, to let the world narrow until only that exists. That ability, to pay complete attention to a single thing for hours, It was a resource that we didn’t know we had until it was taken away from us. so gradually that we do not notice at what exact moment it disappeared. That’s why the tweet didn’t actually talk about the PS2. I was talking about that. From the last time a plastic rectangle was enough to make the rest of the world cease to exist for an entire afternoon. In Xataka | The intellectual luxury of our era is sustaining our attention, AI is making it worse Featured image | Swello

The bridge with the largest steel span has completed its most difficult challenge. And it’s in China, of course.

There is not a month that does not release one mega constructionand in that area, China leads with an iron fist. Both due to the magnitude of his works, the technique used or the land they save with the structurethe Asian giant has become an example of perseverance when it comes to creating, above all, infrastructure that connects all its regions. After the highest bridge in the world, in the province of Chongqing, they are involved with another record-breaking bridge. One with the largest steel span in the world. Fenglai Daxi River Grand Bridge. As is often the case with these works, something that stands out as much as its magnitude is the construction time. In just three years, they have up a bridge in an extremely complex area. It clears two cliffs and the causeway will be 310 meters above the water surface. But more than because of the terrain, if it is news for something, it is because of the opening, that space between two columns. The total length of the bridge will be 1,136 meters when it is finished and the span is almost half of it: 580 meters that are suspended leaning on an arch-shaped structure made of steel. The height The arch in its central part is 116 meters and both the photos and videos show the complex lattice-type structure. Precision. More than a whim, it is necessary if you want to bridge that distance while looking for a bridge that can withstand both the weight and the possible tremors that are frequent in the region. To build the structure, engineers turned to BIM methodology (either Building Information Modeling) that simulates by computer all the processes of both the construction of the structure and its future maintenance. This is common, but essential in this lattice structure where many embedded components require an accuracy of less than a millimeter of deviation. On November 28, the team complete the union of each of the pieces weighing more than 300 tons that form that great puzzle of the lattice span, and now it remains to create the road that will consolidate the union between regions. Necessary. Because the Fenglai Daxi River Grand Bridge is not simply a feat of engineering: it is a catalyst for something China is aggressively pursuing. The country wants to carry out an economic and social transformation of the most challenging regions of its geography, and the Chongqing region falls into those plans as it has a large number of mountain ranges that have traditionally challenged communication with large centers. When completed, the bridge will be part of the Wu-Liang Expressway that will link the urban center of Chongqing with the Wulong district in approximately one hour, when with the current detour it takes approximately three hours, having to do a mountain route. And it is just one piece of a much more ambitious plan, which includes 52 construction projects, more than 1,200 kilometers of highways and a total investment of 155 billion yuan, about 19 billion euros. Megathings = tourism. Thus, the bridge will seek to become an element that will facilitate the flow of goods between the regions, but also of people with the objective of promoting tourism. Currently, in Wulong About 350,000 people live there and it has traditionally been a poor area due to the soil not being the best for farming and its natural isolation. However, since 1994, tourism has transformed it, especially since the Karst Geology National Park out including on the UNESCO World Heritage list in 2007. Now, Wulong aspire to become a global tourist destination, and this improvement in infrastructure seems key to achieving that goal. Furthermore, it is no longer just that China’s megaconstructions facilitate mobility: The buildings themselves are designed with the aspiration that they become points of interest. An example is Huajiang Grand Canyon Bridgean immense construction 625 meters above the level of the river that is used to cross from one side to the other, but It has a cafeteria and some adventure activities. Another is the Three Gorges Damwhich can not only move the axis of rotation of the Earthbut it also has a museum that documents the construction, an example of how the dam itself works and multiple observation points. Images | Xinhua Sci-Tech In Xataka | Young tourists from China have begun to visit random places en masse. There is an explanation: Xiaohongshu

Solar panels have been determined to conquer every building span

Self -consumption It has been growing As renewable energies have been integrated into the home. The fact of power Save on the Light Invoice has made more users decided to put solar panels on roof either balconies. However, it seems that converting a house into an energy generator does not know limits. Short. Canadian company Miterx has launched Solarrail, a system of solar railings with system BIPV (Building Integrated Photovoltaics) Designed, as the name implies, to integrate into architecture and generate energy. The integration of solar energy. This system is designed to integrate photovoltaic into the urban architecture and design, such as The company itself has detailed. In addition, its main advantage is that it takes advantage of the space of the boats of the balconies, transforming them into solar energy generators. Integrated panels. Miterx has launched Two versions of the Solarrail: a transparent version (60%) and an opaque. The panels are made up of bifacial solar cells, which allows to capture sunlight both in the front and in the rear. On the one hand, the transparent model has a power of 105 w, on the other hand, the opaque model reaches 390 W. In addition, the system includes support bars, and hidden wiring Solar rail | Miterx Heat is not concentrated. The installation of solar panels in urban areas, although it promotes energy self -consumption, can contribute to the increase in temperatures in cities. A study has demonstrated That these panels absorb up to 90% of solar energy, turning only 20% into electricity and releasing the rest as heat. However, this is when we talk about a solar panel on the railing, while we will have to wait as these integrated railings can avoid the phenomenon “Urban Heat Island”. So is it better than a solar balcony? BIPV systems avoid phenomena as mentioned above. In addition, in this case, as they are bifacial panels, they capture light from both sides, increased efficiency. However, integrated solar panels can affect the risk of fire, As a Norwegian study explains. The distance between the module and the solar balcony can reduce riskwhich does not happen with an integrated system. Forecasts. Solar energy is evolving beyond traditional roofs or balconies, with innovations such as solar railings. These solutions take advantage of the architecture space to continue growing. For its part, European regulations will require that from 2030 All new construction buildings are zero emissions. In this way, we will have to see how technological innovations in the energy sector will grow to comply with the guidelines. Image | Solarrailing Xataka | It is raining so much in March that it has caused something surprising: that solar energy stops growing in Spain

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